What is special about this box with business cards is Limex, the material used to manufacture it. Limex is made from limestone, which, in contrast to traditional paper production, does not use much water or pulp. This considerably reduces manufacturing and raw-material costs. The box with business cards, which is distributed directly person to person, helps to promote the material. The text printed on the container informs the recipient that the production of one such box saves ten litres of water.